// It should point to a resource of the type specified in ParamKind of the bound ValidatingAdmissionPolicy.
  // If the policy specifies a ParamKind and the resource referred to by ParamRef does not exist, this binding is considered mis-configured and the FailurePolicy of the ValidatingAdmissionPolicy applied.
  // +optional
  optional ParamRef paramRef = 2;

  // MatchResources declares what resources match this binding and will be validated by it.